Thread: Issue with Color Tracking Example (C/C++) and with Counters, Encoders, and Ultrasonic
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Unread 19-01-2009, 21:24
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Re: Issue with Color Tracking Example (C/C++) and with Counters, Encoders, and Ultras
I believe we may have been bitten by this FPGA bug too... We have US Digital encoders mounted on our ToughBox gearboxes. Operating in LabView we were able to assign the proper scaling and get a believable distance measurement (checked by rotating a wheel 10 times and confirming that the distance readout was very close to the expected 15.7 feet. The rate measurement is off substantially. The encoder functions are reporting a rate of around 3.6 fps when we know it is more like 6.6 fps. The encoder on the other wheel also yields a good distance, but it's rate output is extremely erratic. Unclear whether the erratic behavoir could also be related to the FPGA problem.

Can you please elaborate on the precise nature of the FPGA problem, and whether it could yield erratic behavior of just some kind of consistant bias?

-Thanks